Work support



May 1, 1923. 1,453,901

-c. s. ANDERsl-:N v

WORK SUPFORT Filed April 2o. 1922 s sheets-sheet 2 C.S.ANDERSEN WORKSUPPORT May 1, '1923; f 1,453,901

Filed April 20, 1922 3 Sheets-Sheet 3 attenua same as being 'weldedPatented May 1, 1923.

UNETED STATES PARENT "GFFWEF CHRISTIAN s. ANDERSEN, or nwren'nlrrmnorsj.j d 'l WORK SUPPORT.

'Application filed April 20, 1922. Serial No. 555,759.

To aZZ whom t may concern:

Be it known that I, CHRISTIAN S. ANDER-- State of Illinois, haveinventedv a new land useful Work Support, of which the following aspecification. Y

The device formingthe subject matter of this application is a worksupport, adapted to hold two pieces of material whilst the Recallingthat severed pieces of metalV which are to be welded may be of almostany shape or size, the objects of this invention may be summed up in thebrief statement that the machine hereinafter described is soconstructedthat a large number of adjustments are possibleto the endthat thepieces of material may be brought together properly, forwelding.

It is withinthe province of the disclosure to improve generally andtoenhance the utility of devices of that type to which the4 inventionappertains.

Vith the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that, within the scope ofwhat is claimed, changes in the precise embodiment of the inventionlshown can be made without departing from the spirit of the invention. i

In the accompanying drawings Figure 1 shows in elevation, a*devicekconstructed in` accordance with the invention, parts being brokenaway; Figure 2 is an elevation wherein the device is viewed at rightangles to the showing of Figure 1, parts being in section; Figure 3 is asection on the 3 3 of Figure 1; Figure 4 is a section on the line 4-4 ofFigure 1*; Figure 5 is a section on the 'line 5-5 of Figure 1.

The work ,support forming the subject matter of'this applicationcomprises a frame, which is denoted generally by the numeral 1, theframe embodying a. base plate 2carrying an upwardly projecting standard3 having a longitudinal slot 4, the standardbeing supplied at its upperend with a transverse bearing 5 carrying a 'cup 6 adapted to containflux of any other substance used in welding. A hollow shaft 7 isrotatable in the bearing 5 and is provided intermediate itsends with atoothed keeper wheel 8. At

one end, the shaft 7 has a Vfork 9 wherein is disposed toothed keeper 10located at'right angles to the keeper 8, the keeper .10 being rotatablymounted on .the fork'v 9' as 'indil cated'at 11. An annularguide'12 isdisposed in the hollow shaft 7 and is held therein by securing elements14-(Figure fA i first latch, in the form of a pin `15,`is mount-` i edforright line reciprocationl in the guide 12 and in the remote endofthef hollow shaftl Y 7. The latch 'pin 15 is advanced by a compressionspring 17, to engage with the keeper 10 through the instrumentality ofthe compressionspring`17, located within the shaft 7, one end ofthespring engaging theguide 12and the other end of thel spring engagingan abutment 16 on the latch pin. At its outer end, the pin 15 isysupplied with a head 'i i l 18 engagedib'y a forkV 19 on Vthe upper endof anangular lever 20, the lever beingl eX-l tendedinto the slot 4 ofthe standard 3 and being fulcrumed intermediate itsends on'. thestandard as shown 4at 21. A Vsecondy .latch 22 is provided andprojectsinto the* slot 4l of the standard 3, the latch 22 being fulcrumedintermediate its ends on the standard, as shown at 23; The innerendofthe latch 22 extendsbeneathr thek inner end of the lever 2O as clearlyshown in Figureal. A lever orfpedal 24 projects into the slot 4 of thestandard 34 and is fulcrumedl at its y inner end as' at 25 on thestandard. A connection 26'is pivoted at its upper end to the secondlatchr 22, and is pivoted at its end tothe lever or pedal 24.

A first arm 27 .is mounted lower rigidly 'on the toothed keeper 1() andextendsgtran'sversely' thereof, thejarm 27 having a longitudinal guideslot 28. At one end, the arm27 yis equipped with a transversel head29-'having an elongated guide slot-30, disposed at right angles tothe-slot 28 in the arm 27. Threaded openingsv 31 and 32 are `fashionedin the ends of the head 29 and into either of these screw 36 beingrotatable Vin the'slide, the

clamping screw having a turningv head 37. I

The clamping screw 36 is threaded into apost 38 forming part o f a vvorkholder-denoted generally by the numeral 39 in Figure 2, the screwserving to clamp the post on the head The post 38 has aprojecting fixed.jaw 40, and is provided with an arm 4l located parallel to the saidjaw. The movable jaw 42 cooperates with the fixed jaw 40 and Vis adaptedto move on the arm 4l, transversely of the post 38. A screw 43 isthreaded into the movable jaw 42 and is held for rotation, but againstlongitudinal movement in the post 38, by means of an abutment 44 and ahandle 45 on the screw.

Asecond arm` 46 is superposed on the first arm 27 and is provided with alongitudinal guide slot 47 The niuneral 48 in Figure 2 designates,generally, a clamp, holding the j arms 46 and 27 together for relativelongitudinal movement and for pivotal movement with respect to eachother. The clamp 48 embodies a slide 49 mounted tor adjustment in theslot 28 oi* the first arm 27 and ext-ended, beneath the said arm. Ascrew 50 eX- tends downwardly through the slot 47 in the second arm 46and is threaded into the slide 49, the screw 50 being supplied with ahead 5l adapted to engage the second arm 46.

At its outer end, the second arm 46 is equipped with a socket 52 placedat right angles to the said arm.. A hollow post 53 is a turning head 61.

located in the socket 52. rlhe post 53 may be rotated in the socket 52,or it may be moved longitudinally therein. A set screw 54,Y providedwith a turning head 55 is threaded into the socket 52 and engages thepost 53 to hold the same in adjusted positions. A tubular slide 56surrounds the post 53. The slide 56 may be rotated on the post, or itmay be adjusted longitudinally of the post.- The slide 56 is movedlongitudinally of the post 53 by means of an adjusting screw 57,threaded into the end of the post 53. and held against rotation in oneend of the slide 56 by means of an abutment 58 and a turning head 59 onthe screw. The slide 56 may be held securely on the post 53, in anyposition in which the slide may have been adjusted, by a clamp screwv 60threaded into the slide 56 and provided with The tub-ular slide 56 isprovided with a transversely extended oli'set socket 62 wherein a hollowslide 63 is mounted tor right line reciprocation. rlhe slide 63 is movedendwise by a screw 64 threaded into the inner end of the slide, thescrew being held fory rotation in one end of the socket 62 through theinstrumentality ot an: abutment 65 and a turning head 66 on the screw.

lA screw 67 is threaded into the socket 62 Maasai supplied at one endwith a fixed jaw 71 and equipped at its other end with a clamp screw 72adapted to cooperate with the fixed jaw. A stem 73 projects trom theyoke 70 int-erniediate the ends thereof, and terminates in a ball 74received in a socket 75 (Figure 3) formed in the outer end of the slide63. A retainer 76 is threaded on the end of the slide 63 and cooperateswith the ball 74 to hold the work grip 69 movably on the slide 63. Thework grip 69 is held automatically in any position to which it may havebeen adjusted, because the ball 74 of the work grip is engaged by thehollow head 77 of a clamp 78 slidable in a partition 79 formed in theslide 63, and advanced, to press the head 7 7 against. the ball 74, bymeans ot a compression spring 80, one end of the compression springengaging the head 77, and the other end of the compression springengaging the partition 79. A releasing lever 82 constitutes means forretracting the clamp rod 78 against the action ot' the spring 80,thereby setting the work grip 69 free for adjustment. The releasinglever 82 is engaged at one end in an opening 8l formed in the inner endot the clamp rod 78, the lever extending outwardly, through a slot 83 inthe slide 63, the lever being supported intermediate its ends on atulcrum pin 84 carried by the slide.

Supposing that two pieces ot metal are to be welded together, one pieceis held between the screw 72 and the jaw 7l of the work grip 69, whereasthe other piece is held tween the jaws 40 and 42 of the work holder 39,the work holder 39 being carried by the first arm 27, and the work grip69 being carried indirectly, by the second arm 46. y

Two classes of adjustments are possible in the machine. @ne of theseclasses relates to the adjustment of the two pieces of work with respectto each other, and the other class of adjustments relates to themovement ot the two pieces of work, after they have been broughttogether, with respect to the operator, although in practice, these twoclasses or' adjustments may, overlap each other, so far as function isconcerned, First, the adjustments which enable the two pieces of work tobe brought together will be described and, secondly, the adjustments ofthe work relative to the operator will be set forth. Y

Referring to the adjustments ot' the two pieces of work with respect toeach other, to enable them to be brought together, it may be stated thatthe post 38 of the work holder 39 may be moved longitudinally of thehead 29-and transversely of the arm 27 by loosening the clamping screw36;,the 'slide 35,fand consequently the post 38 being retained inadjusted positions, longitudinally of the head' 29 by the screw 331 Thepost 38, further, may be rotated on the screw 36 before j movement beingimparted to the slide by the the latter is tightened up, The work holder39 of which the post 38 constitutes a part, is therefore, 4rotatablewith respect to the arm 27, and is adjustable transversely of the saidarm." The arms 27 and 46 may be adjusted longitudinally with respect toeach other, thereby to vary the space between the work grip 69 and thework holder 59 and the said arms may be disposed at different angleswith respect to each other, the clamp 43k permitting the'arms 46 and 27to be adjusted as aforesaid.l If the screw 54 is loosened, the post 53may be adjusted in the direction of its axis in the socket 52 on the arm46 and the post, further may be rotated in the sock' et. When the clamp60 is released, the slide 56 may be rotated on the post 53. The slide,further, may vbe moved longitudinally of the post 53 through theinstrumentality of the adjustingscrew 57. The slide 63 may be movedlengthwise in the socket 62,

adjusting screw 64. When the clamp rod 78 is retracted through theworking of the releasing lever 82, the ballv 7 4 can rock in the lsocket7 of the slide 63, and the work: grip 69 may be disposed in a widevariety of different positions.

Passing to those adjustments which relate to the disposition ofthe workwith respect to the operator, the pedal 24 may be depressed, motionbeing transmitted to the latch 22 by way of the connection 26, the latch22 being disengaged from the keeper wheel 8. The latch 22 tilts thelever 20 on its fulcrum 2l, the forkl9vof the lever retracts the latchpin l5 out'ofengagement with the keeper l0 and, then, the hollow shaft 7may be rotated in the beading 5 permitting the assembled pieces of work,carried by the holder 39 and the grip 69 to be turned upside-down orbedisposedin many other positions about the axis of rotation of the shaft7. Recalling that the latch pin l5 is out of engagement with the keeper10, the keeper l0 may be swung on its pivotal mounting ll, the arm 26moving with the keeper l() and the arm 46 moving with the arm 26. Thework, therefore may beswung in opposite directions, with the element 1las a'center, in opposite directions, as shown by the arrows A in Figurel and, since the shaft 7 is rotatable in the bearing 5, therwork may beswung in opposite directions,.with the axis of the shaft 7 as a center,as indicated by the arrows B in Figure'2.

'The foregoing will render it evident that two pieces of work may bebrought together forrwelding in a wide variety of ways, it beingpossible to shift the two pieces of-work, with respect to the operator,after they have been brought together, into many different positions.

'What is claimed is v 1,'In` a device of the class described, a

pair ofwork holders; means for mounting y the work holders foradjustment with ref s ect to each other and means foi-,mounting U thework holders for adjustment around axes' which n are disposedsubstantially 'at' right angles to each other. 7

2. ln a device of the class described, a

pair of work holders; means. for mountingl the vwork holders foradjustment with re'- spect to each other; ay shaft supported forrotation; mechanism for mounting f said means on the shaft for swingingmovement m a direction substantially parallel to the axis of the shaft;and means cooperating with said mechanism and with the shaft to holdthem in adjusted positions.

3. In a device of the class described, ay pair of work holders; meansfor mounting the work holders for .adjustment with respect to eachother;a shaftsupported for rotation; mechanism for mounting.said

means ony the shaft for swinging movement Y ina direction `substantiallyparallelv to the aXis of the shaft; latch'mechanisms coactingk with theshaft andA with said mechanismto hold Ithem in' adjusted positions,thelatch mechanisms beingv interengagedv for simul-4 taneous operation;and meansy under `the control of an operator for operating oneo-f f .f

' *y csf the latch mechanisms. 4. In a device of the class described, asupon the shaft for swinging movement in vka direction substantially..parallel to the axis' Y of the shaft; a first latch carried by. the

shaft and cooperating with said mechanism; cooperating with theshaft;.and means for a second latch mounted on the support and operatingthe latches.

a 5. ln a device of the class described, a support a hollow shaftjournaled on the sup port; a keeper xedto the shaft; a keeper removableon the shaft; a pair of work holders; means l for mounting vthe workholders on the' movable keeper for adjustlment with respect to eachother; a rst latch slidable in the shaft and cooperating with themovable keeper;jspring means for advancing lthe first latch with respectto the v i movable keeper; a second latch pivotally mounted on thesupport and cooperating with the vfixed keeper; va lever fulcrumed fromthe movable keeper, through the in-v strumentality of the lever.

6. In aV deviceofthe class described, a`

pair of arms; means for connecting the arms for longitudinal adjustmentwith respect to foo.. 'l

on the support and-constituting an operative eaeli other and for pivotalmovement With respect to each other; ivorlr holders; means for mountingthe Work holders on the arms Ator adjustment transversely thereof; and asupport carrying' one arm.

4.7. ln a device of the class described; a pair of arms; means forconnecting said arms for longitudinal adjustment With respeet to eachother and for pivotal movement with respect to eaeh other; a viorlrholder on one arn'i: a slide movable transversely of the other arm; awor-l; holder roH iiatable for adjustment on the slide and eooperatingwith the 'first specified Work holder; and a support carrying one arm.

8. in a device 03; the class described; a pair el: arms; in i forconnecting the arms Vfor longitudinal a istinent with respect to eachother and for swinging movement with respect to each other; a slidemounted for adjustment on one arm; a feed screw carried by the arm andeoope-iitiiig with the slide; a ivorl; holder; a rotatable mounting forthe "vi'orlr holder carried by the slide, said mountingconstitutingmeans for Clamping the vif'ork holder against movement with respect tothe arm and for holding the slide in adjusted positions; a work holderon the other arm and cooperating with the first specied Werl; holder;and a support carrying` one arm. v

9.y ln a device of the elass described, a pair of arms; means 'forconnecting the arms tor relative adjustment; a first slide; means tormounting the .first slide for adjustment transversely oil one arm; meansfor holding the slide in adjusted positions; a-seeond slide adjustableon the first slide transversely thereof; a worlr holder mounted on thesecond slide; a. Work holder `on the other arm and cooperating With theiirst specified Work holder; and a supoort carrying` one arm.

l0. ln device of the class described; a pair olf arms; means forconnecting the arms for relative adjustment; a first slide; means formounting the `First slide for adjustment transversely of one arm andyfor rotation thereon; means for holding the first slide in adjustedpositions; a second slide adjustable on the i'irst slide transverselj7thereof; a work holder mounted on the second slide; a 'wor-lr holder onthe other arn'i and cooperating with the rst specified work holder; anda supjtiort carrying one arni. ll. ln a device of the class described, apair ol arms; means 'for connecting the arms -f ljustable; a firstslide; means for mountthe iirst slide for adjustment transverseinadjusted positions; a second slide adjustable on the. lirst slidetransversely thereof; a Werl: holder; a ball and soelet connectionbetwee slide; a Worlr holder on the other arm and cooperating with thefirst specified Work holder; and a support carried by one arm.

ln testimony that l claim the foregoinr` a' my own, l have hereto`atlcixed my signal ture in the presence oi two Witnesses.

CHRlSTlAN S. ANDERSEN.

Viitnesses j JANS J. SPANDET, JOHN J. DOHULY.

l ly of one arm; means for holdingthe slidethe vieri; holder and thesecondy

